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Rewterz Threat Advisory – Multiple Linux Kernel Vulnerabilities
August 2, 2023

Rewterz Threat Advisory – Multiple Linux Kernel Vulnerabilities

Severity

Medium

Analysis Summary

CVE-2023-4010 CVSS:4.6

Linux Kernel is vulnerable to a denial of service, caused by a loophole flaw in the usb_giveback_urb function in the USB Host Controller Driver framework. By using a specially crafted USB device, a physical attacker could exploit this vulnerability to cause an infinite loop, and results in a denial of service condition.

CVE-2023-4004 CVSS:7.8

Linux Kernel could allow a local authenticated attacker to gain elevated privileges on the system, caused by a flaw in the nft_pipapo_remove function in the netfilter. By sending a specially crafted request, an authenticated attacker could exploit this vulnerability to gain elevated privileges or cause the system to crash.

Impact

  • Denial of Service
  • Privilege Escalation

Indicators Of Compromise

CVE

  • CVE-2023-4010
  • CVE-2023-4004

Affected Vendors

Linux

Affected Products

  • Linux Kernel
  • Linux Kernel 6.4
  • Linux Kernel 6.5-rc4

Remediation

Upgrade to the latest version of Linux Kernel, available from the Linux Kernel Website.

Linux Kernel Website